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如何恢复一个只有完好数据文件的数据库 (2)

发布时间:2007.01.12 09:04     来源:中国IT实验室    作者:中国IT实验室













5、开始重建控制文件

1)在类似的数据库(比如数据库名称"rman")上执行:

  alter database backup controlfile to trace;

然后在D:oracleadminrmanudump下找到最新的trace文件,以文本方式打开,找到类似下面的一段话:

STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "rman" NORESETLOGS ARCHIVELOG
-- SET STANDBY TO MAXIMIZE PERFORMANCE
MAXLOGFILES 50
MAXLOGMEMBERS 5
MAXDATAFILES 100
MAXINSTANCES 1
MAXLOGHISTORY 226
LOGFILE
GROUP 1 'D:ORACLEORADATARMANREDO01.LOG' SIZE 100M,
GROUP 2 'D:ORACLEORADATARMANREDO02.LOG' SIZE 100M,
GROUP 3 'D:ORACLEORADATARMANREDO03.LOG' SIZE 100M
-- STANDBY LOGFILE
DATAFILE
'D:ORACLEORADATARMANSYSTEM01.DBF',
'D:ORACLEORADATARMANUNDOTBS01.DBF',
'D:ORACLEORADATARMANCWMLITE01.DBF',
'D:ORACLEORADATARMANDRSYS01.DBF',
'D:ORACLEORADATARMANEXAMPLE01.DBF',
'D:ORACLEORADATARMANINDX01.DBF',
'D:ORACLEORADATARMANODM01.DBF',
'D:ORACLEORADATARMANTOOLS01.DBF',
'D:ORACLEORADATARMANUSERS01.DBF',
'D:ORACLEORADATARMANXDB01.DBF',
'D:ORACLEORADATARMANTEST.ORA'
CHARACTER SET WE8MSWIN1252

2)将上面这段话修改为如下:

STARTUP NOMOUNT
CREATE CONTROLFILE set DATABASE "tti" RESETLOGS --注意这里要"set"
-- SET STANDBY TO MAXIMIZE PERFORMANCE
MAXLOGFILES 50
MAXLOGMEMBERS 5
MAXDATAFILES 100
MAXINSTANCES 1
MAXLOGHISTORY 226
LOGFILE
GROUP 1 'D:ORACLEORADATAttiREDO01.LOG' SIZE 100M,
GROUP 2 'D:ORACLEORADATAttiREDO02.LOG' SIZE 100M,
GROUP 3 'D:ORACLEORADATAttiREDO03.LOG' SIZE 100M
-- STANDBY LOGFILE
DATAFILE
'D:ORACLEORADATAttiSYSTEM01.DBF',
'D:ORACLEORADATAttiUNDOTBS01.DBF',
'D:ORACLEORADATAttiCWMLITE01.DBF',
'D:ORACLEORADATAttiDRSYS01.DBF',
'D:ORACLEORADATAttiEXAMPLE01.DBF',
'D:ORACLEORADATAttiINDX01.DBF',
'D:ORACLEORADATAttiODM01.DBF',
'D:ORACLEORADATAttiTOOLS01.DBF',
'D:ORACLEORADATAttiUSERS01.DBF',
'D:ORACLEORADATAttiXDB01.DBF',
'D:ORACLEORADATAttiTEST.ORA'
CHARACTER SET WE8MSWIN1252

3)开始重建控制文件

D:>sqlplus/nolog

SQL*Plus: Release 9.2.0.1.0 - Production on Thu Nov 16 09:08:19 2006

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

SQL> conn sys/zlw001@tti as sysdba;
Connected to an idle instance.
SQL> startup nomount pfile=d:oracleadminttipfileinit.ora;
ORACLE instance started.

Total System Global Area 135338868 bytes
Fixed Size 453492 bytes
Variable Size 109051904 bytes
Database Buffers 25165824 bytes
Redo Buffers 667648 bytes
SQL> CREATE CONTROLFILE set DATABASE "tti" RESETLOGS
2 -- SET STANDBY TO MAXIMIZE PERFORMANCE
3 MAXLOGFILES 50
4 MAXLOGMEMBERS 5
5 MAXDATAFILES 100
6 MAXINSTANCES 1
7 MAXLOGHISTORY 226
8 LOGFILE
9 GROUP 1 'D:ORACLEORADATAttiREDO01.LOG' SIZE 100M,
10 GROUP 2 'D:ORACLEORADATAttiREDO02.LOG' SIZE 100M,
11 GROUP 3 'D:ORACLEORADATAttiREDO03.LOG' SIZE 100M
12 -- STANDBY LOGFILE
13 DATAFILE
14 'D:ORACLEORADATAttiSYSTEM01.DBF',
15 'D:ORACLEORADATAttiUNDOTBS01.DBF',
16 'D:ORACLEORADATAttiCWMLITE01.DBF',
17 'D:ORACLEORADATAttiDRSYS01.DBF',
18 'D:ORACLEORADATAttiEXAMPLE01.DBF',
19 'D:ORACLEORADATAttiINDX01.DBF',
20 'D:ORACLEORADATAttiODM01.DBF',
21 'D:ORACLEORADATAttiTOOLS01.DBF',
22 'D:ORACLEORADATAttiUSERS01.DBF',
23 'D:ORACLEORADATAttiXDB01.DBF',
24 'D:ORACLEORADATAttiTEST.ORA'
25 CHARACTER SET WE8MSWIN1252;

Control file created.

SQL> alter database open resetlogs;

Database altered.

SQL> select instance_name,status from v$instance;

INSTANCE_NAME STATUS
---------------- ------------
tti OPEN

SQL> select ts#,name from v$datafile;

file# NAME
--------- --------------------------------------------
1 D:ORACLEORADATATTISYSTEM01.DBF
2 D:ORACLEORADATATTIUNDOTBS01.DBF
3 D:ORACLEORADATATTICWMLITE01.DBF
4 D:ORACLEORADATATTIDRSYS01.DBF
5 D:ORACLEORADATATTIEXAMPLE01.DBF
6 D:ORACLEORADATATTIINDX01.DBF
7 D:ORACLEORADATATTIODM01.DBF
8 D:ORACLEORADATATTITOOLS01.DBF
9 D:ORACLEORADATATTIUSERS01.DBF
10 D:ORACLEORADATATTIXDB01.DBF
11 D:ORACLEORADATATTITEST.ORA


11 rows selected.

SQL>

至此全部结束!

(T004)

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